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4st 25/30 2022
2) Measuring instruments
For the following measuring instruments, use commercially available ones.
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Vernier calipers (M1 type, 300 mm)
Micrometer
(JIS B 7502; minimum graduation of 0.01, outer, 0 to 25 mm, 25 to 50 mm, 50 to 75 mm)
Cylinder gauge (4 to 6 mm, 10 to 25 mm, 25 to 30 mm, 50 to 75 mm)
Ring gauge (JIS B 7420;
Ѯ
5.5,
Ѯ
17,
Ѯ
42,
Ѯ
70)
Dial gauge (JIS B 7503; minimum graduation of 0.01)
Thickness gauge (JIS B 7524; 0.03 to 0.3 mm)
V block (JIS B 7540)
Surface plate (JIS B 7513; 500×500)
Dial gauge magnet base or dial gauge stand
3. Tools and Instruments
1) Test Propeller
MFS25 MFS30
Part No. 3VS-64110-0 3VS-64110-0
Outer Diameter a 223 mm (8.78 in) 223 mm (8.78 in)
Width b 16 mm (0.63 in) 16 mm (0.63 in)
Fully Open Revolution Speed 5500 min
-1
(rpm) 6000 min
-1
(rpm)